The molar dissolution enthalpy of the reactants and the products of the coordination reaction of Samarium Chloride with Glycine have been measured by isoperibol solution calorimetry, the calorimetric solvent is 2mol. ...The molar dissolution enthalpy of the reactants and the products of the coordination reaction of Samarium Chloride with Glycine have been measured by isoperibol solution calorimetry, the calorimetric solvent is 2mol. L-l HCI solution. The standard molar reaction enthalpy (298. 2K) is -7. 3381kJ· mol - 1. From the results and other auxiliary quantities, the standard molar enthalpy of formation of the new coordination compound has been calculated to be (Sm(Cly)3C13. 3H2O, s, 298. ZK) = - 3631. 74kJ · mol- 1.展开更多
The standard formation enthalpy of the glycine complex with erbium chloride was determined by using an isoperibolic calorimeter with the hydrochloric acid solution(2 mol/L) as a calorimetric solvent according a propos...The standard formation enthalpy of the glycine complex with erbium chloride was determined by using an isoperibolic calorimeter with the hydrochloric acid solution(2 mol/L) as a calorimetric solvent according a proposed thermochemical cycle. The following values were obtained: Δ r H θ m(298.15 K)=-3.331 kJ/mol Δ f H θ m(Er(Gly) 3Cl 3·3H 2O,s,298.15 K)=-3 632.0展开更多
Two-dimensional network Cu(Ⅱ) compound [Cu(HGS).H2O].H2O was synthesized and characterized by elemental analysis,IR spectrum,where GS is the schiff base N-N-3-carboxy salicylidene glycine.Its crystal structrue was de...Two-dimensional network Cu(Ⅱ) compound [Cu(HGS).H2O].H2O was synthesized and characterized by elemental analysis,IR spectrum,where GS is the schiff base N-N-3-carboxy salicylidene glycine.Its crystal structrue was determined by single crystal X-ray diffraction techniques.Crystal data are as fullows: monoclinic,space group a=0.84846(3) nm,b=0.68154(3)nm,c=1.96716(8)nm,α=90°,β=95.8210(10°),γ=90°,Z=4,Dc=1.883Mg/m3,Mr=320.74,μ=1.961,F(000)=652,R=0.0279,wR2=0.0722.The copper atom is five-coordinated in a distorted square pyramidal,by one N donor,two oxygen donors,and an exogenous water forming the bottom of the square-pyramidal,with an O atom of the adjacent molecule occupying the apical site.Crystal structure indicated that the complex has two-dimensional stacking network structrue,which is formed by intramolecular hydrogen bonds,intermolecular hydrogen bonds and stacking effect of aromatic ring.展开更多
The crystal structure of [Cu(sal ala)bipy]·CH 3OH·2H 2O (sal ala: salicylaldehyde alaninato, bipy: 2,2′ bipyridine), a potential anticancer agent and tumor imaging agent, is determined at 123 K. The complex...The crystal structure of [Cu(sal ala)bipy]·CH 3OH·2H 2O (sal ala: salicylaldehyde alaninato, bipy: 2,2′ bipyridine), a potential anticancer agent and tumor imaging agent, is determined at 123 K. The complex crystallizes in triclinic, space group P - 1. The cell dimensions are a =0 894 8(2) nm, b =0 973 1(2) nm, c =1 263 2(3) nm; α =78 06(3)°, β =78 02(3)°, γ =88 22(3)°; V =1 052 6(4) nm 3, M r=479 99, Z =2, ρ c=1 514 g·cm -3 . The total number of 4 313 independent reflections with I>2σ(I) are used for the structure determination. The final R is 0 075 8 and R w is 0 179.The central Cu 2+ ion is penta coordinated by tridentate Schiff base and bidentate bipy, resulting in a distorted square pyramid coordination polyhedron. Three kinds of hydrogen bonds are revealed.展开更多
文摘The molar dissolution enthalpy of the reactants and the products of the coordination reaction of Samarium Chloride with Glycine have been measured by isoperibol solution calorimetry, the calorimetric solvent is 2mol. L-l HCI solution. The standard molar reaction enthalpy (298. 2K) is -7. 3381kJ· mol - 1. From the results and other auxiliary quantities, the standard molar enthalpy of formation of the new coordination compound has been calculated to be (Sm(Cly)3C13. 3H2O, s, 298. ZK) = - 3631. 74kJ · mol- 1.
文摘The standard formation enthalpy of the glycine complex with erbium chloride was determined by using an isoperibolic calorimeter with the hydrochloric acid solution(2 mol/L) as a calorimetric solvent according a proposed thermochemical cycle. The following values were obtained: Δ r H θ m(298.15 K)=-3.331 kJ/mol Δ f H θ m(Er(Gly) 3Cl 3·3H 2O,s,298.15 K)=-3 632.0
文摘Two-dimensional network Cu(Ⅱ) compound [Cu(HGS).H2O].H2O was synthesized and characterized by elemental analysis,IR spectrum,where GS is the schiff base N-N-3-carboxy salicylidene glycine.Its crystal structrue was determined by single crystal X-ray diffraction techniques.Crystal data are as fullows: monoclinic,space group a=0.84846(3) nm,b=0.68154(3)nm,c=1.96716(8)nm,α=90°,β=95.8210(10°),γ=90°,Z=4,Dc=1.883Mg/m3,Mr=320.74,μ=1.961,F(000)=652,R=0.0279,wR2=0.0722.The copper atom is five-coordinated in a distorted square pyramidal,by one N donor,two oxygen donors,and an exogenous water forming the bottom of the square-pyramidal,with an O atom of the adjacent molecule occupying the apical site.Crystal structure indicated that the complex has two-dimensional stacking network structrue,which is formed by intramolecular hydrogen bonds,intermolecular hydrogen bonds and stacking effect of aromatic ring.
文摘The crystal structure of [Cu(sal ala)bipy]·CH 3OH·2H 2O (sal ala: salicylaldehyde alaninato, bipy: 2,2′ bipyridine), a potential anticancer agent and tumor imaging agent, is determined at 123 K. The complex crystallizes in triclinic, space group P - 1. The cell dimensions are a =0 894 8(2) nm, b =0 973 1(2) nm, c =1 263 2(3) nm; α =78 06(3)°, β =78 02(3)°, γ =88 22(3)°; V =1 052 6(4) nm 3, M r=479 99, Z =2, ρ c=1 514 g·cm -3 . The total number of 4 313 independent reflections with I>2σ(I) are used for the structure determination. The final R is 0 075 8 and R w is 0 179.The central Cu 2+ ion is penta coordinated by tridentate Schiff base and bidentate bipy, resulting in a distorted square pyramid coordination polyhedron. Three kinds of hydrogen bonds are revealed.
